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Afterwards, Wang Bin poked at the professor and the others, chatted for a while, and returned to the office about the construction of the high-altitude platform.

However, not long after Wang Bin returned to his office, Wang Bin received a call from Director Lu, the director of the industrial zone.

"Mr. Wang, your Tiangong Technology is really amazing in the air show this time! You actually got an order of 30 to 40 billion. I am very happy with the results. This time I really won the honor of our county and even the city! In the past, because there was no aviation company in our county, there was only one drone company in the city. It is only a production and R\u0026D enterprise, and its products are not popular, and the orders received at each air show are basically very small! In the entire air show, it is often ranked at the bottom.

But this time is different. Your Tiangong Technology has become the most dazzling star enterprise during the entire exhibition. Therefore, our city and county have great expectations for your Tiangong Technology, and we also hope that you Tiangong Technology will Science and technology can become a leading high-tech enterprise in the city, make new contributions to the industrial development of our city, and make greater achievements for the aerospace industry of our country. Director Lu said happily during the phone call.

"Don't worry! Our Tiangong Technology is a company that mainly develops aerospace, but for the development of other aspects, our Tiangong Technology will naturally not give up.

For example, our Tiangong Technology has been involved in the research and development of high-precision CNC machine tools, and the research and development in the field of materials, etc. In addition, our research and development of network hardware and software at Tiangong Technology has now been completed. The official start, I think we, Tiangong Technology, will never let everyone down! "Wang Bin said.

After chatting with Director Lu for a while, Wang Bin hung up the phone. Naturally, Wang Bin understood the official attitude of the city and the county very well. After all, Tiangong Technology was able to win such a big This is of great benefit to the city and the county, so naturally the county and the city should pay more attention to Tiangong Technology.

.........

In Wang Bin's busy schedule, more than a month passed quickly. The parts of the first small bypass ratio turbofan engine prototype after their Tiangong Technology has been modified and modified many times have been manufactured. And entered the final assembly stage.

Wang Bin is also very concerned about this turbofan engine with small bypass ratio, because this engine is not only the first turbofan engine with small bypass ratio and small bypass ratio produced by Wang Bin and Tiangong Technology, but also because of this The thrust of the small bypass ratio turbofan engine is as high as 30 tons, and this engine will also be the best engine candidate for the super-large aircraft that Wang Bin and his team are developing with Tiangong Technology, which is the Phoenix aircraft. One of the models.

After all, according to the normal situation, a huge aircraft like the Phoenix will basically not use a turbofan engine with a small bypass ratio as power. After all, under the same thrust, a turbofan engine with a large bypass ratio In terms of fuel consumption and stability, it is far better than a turbofan engine with a small bypass ratio.

Yes, the large bypass ratio has a big defect for the Phoenix aircraft that Wang Bin and the others are developing, that is, the engine with a large bypass ratio cannot fly at supersonic speeds, and the Phoenix aircraft is very large in size. Huge, but a genuinely large supersonic aircraft.

Therefore, in terms of innate conditions, this aircraft cannot use a large bypass ratio engine as the active power of the aircraft.

The remaining two options are to choose between a turbojet engine and a small bypass ratio turbofan engine.

However, both turbojet engines and small bypass ratio turbofan engines can be used as power for supersonic aircraft, but there are still obvious differences between the two.

Although the turbojet engine has many advantages,

And even if the speed of the aircraft reaches Mach 2 or even Mach 3, the turbojet engine can still provide power for the aircraft very well, but the turbojet engine also has obvious defects, that is, in terms of fuel consumption, it needs to be Much higher than the turbofan engine, in addition, in many other aspects, it cannot be compared with the turbofan engine.

The small bypass ratio turbofan engine is different. Although the small bypass ratio turbofan engine is inferior to the turbojet engine in terms of specific impulse, this makes the engine fan blow when the aircraft reaches a certain speed, that is, above 2 times the speed of sound. If there is a lot of wind resistance, the probability of the engine will drop significantly, but it is better than the turbojet engine in terms of fuel consumption, engine noise, and engine thrust.

However, in comparison, whether it is Wang Bin or Professor Dai, etc., they are actually more inclined to small bypass ratio turbofan engines. After all, a giant like the Phoenix has already been designed Various factors have been considered, including the wind resistance generated by the aircraft during flight.

But if you want its speed to be more than twice the speed of sound, it is simply nonsense, and since the thrust of the turbojet engine is smaller than that of the turbofan engine, if you use a turbojet engine as the power of the Phoenix aircraft, it will be necessary to use it for a long time More engines.

At the same time, since the fuel consumption of turbojet engines is far greater than that of turbofans, it means that the aircraft must fly farther, and it must carry more fuel, which will greatly reduce the aircraft's performance. load capacity.

However, Wang Bin, Professor Dai and others did not completely abandon the use of turbojet engines as power, because although there are many defects in using turbojet engines as power, if turbojet engines are used as power, then the aircraft The strength is enough, and at high altitude, it is not impossible to exceed the speed of Mach two.

It is not impossible even if it reaches the double-three standard or above. If the speed and altitude of the Phoenix aircraft can reach the double-three standard or above, it will definitely be of great help to Tiangong Technology's aerospace industry, and even It can lay the foundation for changing the Phoenix aircraft into an aerospace plane in the future.

Of course, with the current capabilities of Tiangong Technology, it is basically impossible for the Phoenix to use a turbojet engine as power and break the double-three standard, and a turbojet engine with a thrust of more than 20 tons is not that good. developed.

Therefore, under the current circumstances, Wang Bin and the others honestly use a turbofan engine with a small bypass ratio as the most suitable engine. First, they will manufacture the Phoenix aircraft.

After all, if the Phoenix fighter cannot be built, no matter how advanced the engine is, it will have no effect at all.